The dynamics of low surface brightness galaxies (LSB) and dwarf Spheroidal galaxies (dSph) are more in agreement with a cored-dark matter (DM) halo, rather than with a cuspy DM halo, predicted from cosmological simulations; The so called core-cusp problem. When baryons are taken into account, DM cusps can evolve into cores naturally. We call the latter the corification of the DM halo. Our aim is to investigate the time span of DM-core formation, and to explore if a star cluster within such an halo would survive. In particular we investigate the case of the dSph galaxy Eridanus II and Andromeda XXV.
Enviado por v.lora@irya.unam.mx, 2019 Oct